FIG. 2
MODEL
MM648
FIG. 3
MODEL MM748
NOTE; To install grilles,
pinch springs together and
slide into grille mounting slot.
TOOLS
Installation of your bath fan is easy. No special technical
knowledge is needed; only a few ordinary tools are required:
Screwdriver
Hammer
Saber saw, Keyhole saw, or Jig saw
Electric drill with bit
Wire cutters
Wire stripper
Wire nuts and general electrical supplies
Safety glasses
Ruler and straight edge
All hand tools should be insulated. Power tools should display the
U.L. Listing Mark.
1. Attach duct adapter to housing by first inserting pin on duct
adapter into round hole in top of housing, then pivot and align
two locking tabs with small rectangular holes. See Fig. 4.
Press tabs firmly into place.
NOTE: The attachment of the duct adapter to the housing maybe
reinforced, if desired, by installing a #8 self-tapping screw through
the obround hole in the duct adapter and the small round hole in
the housing.
2. Attach housing to joist with screws or nails. Housing is
stamped to show a line at 3/4” for standard sheetrock and
plaster and 3/8” for drywall. See Fig. 5.
3.
Run 120VAC, 60Hz power leads from wall switch or timer
to appropriate knockout in housing. Use a BX or Romex
connector on outlet box.
WARNING: SUPPLY WIRING MUST BE U.L. RATED 90°C
FOR FAN/LIGHT MODELS.
NOTE: The knockout support may be reversed, if desired, to
open alternate knockout hole and cover unused hole. See Fig. 5.
If both holes are to be used, simply remove knockout.
NEW HOME INSTALLATION
-2-
FIG. 4
FIG. 5
FIG. 6
DUCT ADAPTER
KNOCKOUT
SUPPORT
ROUND
DUCT
WALL
CAP
6
3/4
"
5
1/2
"
6
1/4
"
7
3/4
"
MOTOR AND
BRACKET
ASSEMBLY
UMIDITY SENSOR
AWARE TECHNOLOGY
UNITS ONLY)
GRILLE
MTG
SLOTS
OUTLET
BOX
4" AIR DISCHARGE
OUTLET
12
1/4
"
10
3/4
"
SPRING
CLIP
GRILLE
6
3/4
"
5
5/8
"
7
3/4
"
MOTOR AND
BRACKET
ASSEMBLY
SPRING
CLIP
GRILLE
OUTLET
BOX
3" AIR DISCHARGE
OUTLET
12
1/4
"
10
3/4
"
